.sea{ 
    
        -webkit-overflow-scrolling:touch;
        
    ul{
        #goal{
            position: fixed;
            top: 10px;
            left: 800px;
            font-size: large;
            user-select: none;

        }
        width: 5000px;
        height: 5000px;
        background: #87e0f2;
        position: relative;
        background-size: contain;
        overflow: hidden;
        
        li{
            list-style: none;
            position: absolute;
            height: 30px;
            width: 20px;
            top: 500px;
            left: 500px;
            z-index: 100;
            // border: solid whitesmoke;
            background: url(../images/xiaokedou2.png) no-repeat;
            
            background-size: contain;
        }
        span:nth-child(-n+100){
            position: absolute;
            height: 30px;
            width: 20px;
            background-size: contain;
            border: #87e0f2;
            
            background-repeat: no-repeat;
        }
        span:nth-child(-n+130):nth-child(n+100){
            position: absolute;
            height: 100px;
            width: 80px;
            background-size: contain;
            border: #87e0f2;
            
            background-repeat: no-repeat;
        }
        span:nth-child(-n+150):nth-child(n+130){
            position: absolute;
            height: 100px;
            width: 80px;
            background-size: contain;
            border: #87e0f2;
            
            background-repeat: no-repeat;
        }
        // p{
        //     position: absolute;
        //     height: 300px;
        //     width: 200px;
        //     background-size: contain;
        //     border: #87e0f2;
            
        //     background-repeat: no-repeat; 
        // }
        div{
            position: absolute;
            height: 100px;
            width: 80px;
            border: #87e0f2;
            background-size: contain;
            background-repeat: no-repeat;
            
        }
        
    }
}